Support alternate download locations about pgeocode

[shawn-dyjak-pp]

Similar to this, the download directory does not work in AWS serverless. While the constant download of the zip wouldn't be the best, it is an easy fix:

if os.environ.get("AWS_EXECUTION_ENV") is not None:
  STORAGE_DIR = '/tmp/pgeocode_data'
else:
  STORAGE_DIR = os.path.join(os.path.expanduser('~'),
                           'pgeocode_data')

[rth]

@shawn-dyjak-pp I suppose you can set an environment variable on AWS lambda right? In that case, something like,

STORAGE_DIR = os.environ.get(
     "PGEOCODE_DATA_DIR",
     os.path.join(os.path.expanduser('~'), 'pgeocode_data')
)

should work. Better to avoid AWS specific environement variable names. A Pull request to add this would be very welcome.

[shawn-dyjak-pp]

You can. Tested and confirmed that would work as would be expected. I'll get the PR in a bit.

@rth How do you prefer a PR? I don't have permissions to create a new branch.

[rth]

How do you prefer a PR? I don't have permissions to create a new branch.

@shawn-dyjak-pp The best way is to fork this repo, create a new branch there and then create a PR from it https://help.github.com/en/articles/creating-a-pull-request-from-a-fork